Gehmann iris & twin polariser
Iris (0.5mm to 3.0mm)
Two polarisation filters:
1. ring eliminates reflections and controls white around target
2. ring (with stainless lugs) controls light through the sight and enables varying degress of brightness
10 - 90 % light absorption via the twin polarisers
Can be used as an iris only - or with one, or both, polarisers
Removable steel threaded connection which enables the use of a diopter
Easy clean instructions are included
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